On August 21st this media campaign was prophetically announced (though the campaign was already underway): “In the coming weeks, EVERYTHING'LL GO: every kind of lie, manipulation, intoxication or dirty games”.

My translation: "Last March, the National
Counterterrorism Center (NCTC) forwarded at least two communications to
the Mossos d 'Esquadra, which reported possible terrorist threats in
Catalonia. This agency is an agency of the United States Government
whose mission is to collect data on terrorism from more than twenty
intelligence agencies in the country, in addition to maintaining
relations with its international counterparts.

"On March 23 and 24, the US agency forwarded communications to the [Spanish] Police and Guardia Civil,
informing them that, by given that its content affected Catalonia, it
had also been forwarded to the Mossos. "Given that this memorandum
includes possible information on threats in Barcelona, ​​our service is
providing the National Intelligence Centre (CNI), the Civil Guard (GC),
the National Police of Spain (SNP), the Mossos d'Esquadra and the
Spanish Counter-Terrorism and the Centro de Inteligencia del Crimen
Organizado (Center for the Intelligence of Organized Crime, CITCO)",
both reports said in their last paragraph."

Before considering what Prof. Ferran Requejo actually said (in an El Món interview on 23 August 2017), let me point out he holds no post of any kind in the Catalan government. Along with dozens of other academics and specialists, he was a member of an ad hoc "Advisory Council" which
finished its work about three years ago.

"Requejo sees "two phases" in this matter. Before the attacks 'there was a political will on the part of the government of Madrid to exclude and marginalize the Catalan institutions'. The Mossos were excluded from the coordination of the security forces and Requejo recalls 'all the reluctance and obstacles that there were to hold a meeting of the Security Board, which has not met for eight years, until the president of the Generalitat, Carles Puigdemont, put his foot down'.